Ch. 9 Quiz
conflict between the mother and the fetus with respect to how much glucose the fetus should receive.
Gestational diabetes is thought to be the consequence of:
multiple males tend to mate with the same female.
In a polyandrous mating system:
polygyny.
In a species such as elephant seals, in which males are significantly larger than females, the most likely mating system is:
an older female in the colony in which she was born.
The Belding's ground squirrel giving off an alarm signal in the figure would most commonly be:
reproductive investment.
The energy that a parent puts into the growth, feeding, and care of offspring is called:
Ancestral humans who preferred fatty foods were less likely to starve, leaving more offspring in the next generation.
What is the ultimate explanation for modern human preference for fatty foods?
a fixed action pattern.
When a goose spots an egg outside of its nest, the goose gets out of the nest and rolls the egg back. Once started, a goose continues the egg-retrieval movement all the way back to the nest, even if the egg is taken away during the process. This is called:
reduce paternity uncertainty.
Mate guarding is a reproductive tactic that functions to:
kin selection; reciprocal altruism
Most apparent acts of altruism in the animal kingdom have proved, on closer inspection, to be not truly altruistic. Instead, they have evolved as a consequence of either _____________________ or _____________________.